CSL649 is a uniquely formulated one-part, RTV (Room Temperature Vulcanizing) silicone sealant for use in a variety of LED applications.
CSL649 does not generate corrosive by-products during cure, making it ideal for use in corrosion-sensitive LED lighting packages with no adverse effects.
CSL649 has a wide operating temperature range of -60°C to 200°C (-76°F to 392°F) enabling the LED packages to pass common industry reliability tests.
CSL649 will not yellow due to UV exposure causing no detrimental effects on the light output of the LED.
CSL649 has a low modulus and a high Coefficient of Thermal Expansion (CTE) to protect the delicate wire connections between PCB and diode from mechanical stress.
CSL649 is self-bonding to a wide range of substrates without the use of a primer resulting in improved delamination resistance and device reliability.